The problem of beer That it is within a 'bottle', i.e. a boundaryless compact 2-manifold
homeomorphic to the sphere. Since beer bottles are not (usually)
pathological or "wild" spheres, but smooth manifolds, they separate 3-space into
two non-communicating regions: inside, containing beer, and
outside, containing you. This state must not remain.

A proposed solution Clearly the elegant course is to
introduce a non-orientable manifold, which has one side and does not divide 3-space.
When juxtaposed with the beer-bounding manifold described above,
it acts to disrupt the continuity thereof, canceling the outdated paradigm of
distinction between interior and exterior. This enables the desired interaction between beer and self.